Abstract
Type 405 stainless clad steel plate has been widely used as a corrosion resistant material, especially as a stress corrosion cracking resistant material. However, occurrence of transverse cracking due to hydrogen in the first layer welds of clad side and apperance of carburized layer in the heat affected zone of first layer welds of clad side are reported in the welds of this steel. Investigation has been made to clarify the effect of chemical composition of base metal and welding condition on these problems mentioned above.
Results show that the largest effect wasobtained with the reduction of C content in base metal on the improvement of these problems. Therefore, the application of newly developed low-C, Al-B treated low alloy steel plates for base, metal of Type 405 stainless clad steel plates is expected to be available.
